Finding the Fourth Proportional to 2,274.20, 3,137.36 and 1,434.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,274.20 : 3,137.36 = 1,434.32 : x
2. Step 2: Convert to fraction form
   2,274.20/3,137.36 = 1,434.32/x
3. Step 3: Cross multiply
   2,274.20x = 3,137.36 × 1,434.32
4. Step 4: Simplify right side
   2,274.20x = 4,499,978.20
5. Step 5: Solve for x
   x = 4,499,978.20/2,274.20
6. Step 6: Final answer
   x = 1,978.71